Yarn-dyer



A. KRASA.

YARN DYER.

APPLICATION FILED SEPT-25. I919.

1,328,435, Patented Jan. 20, 1920.

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UNITED STATES PATENT OFFICE. 4

ALBERT KBASA, OF CHICAGO, ILLINOIS.

YARN-DYER.

Application filed September 25, 1919.

To all whom it may concern:

Be it known that I, ALBERT KRASA, a citizen of the United States, and resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Yarn-Dyers, of which the following is a specification and which are illustrated in the accompanying drawings, forming a part thereof.

The invention relates to devices for dyeing yarn for use with knitting machines, and has for an object the rovision of means to keep the. dyeing wicks uniformly wet with the dye.

An illustrative embodiment of the inven tion isshown in the accompanying drawings, in which Figure 1 is a plan view partly broken away;

Fig. 2 is a side elevation of Fig. 1, partly in section, on line 22 of Fig. 1 and showing a portion of one supply pipe in vertical section;

Fig. 3 is a transverse section on line 33 of Fig. 2, the wick and casing being omitted;

Fig. 4 is a transverse section on line 44 of Fig. 3, of one casing and a portion of the supply pipe.

In the so-called intermittent dyeing of yarn for use in knitting, wherein dye is applied to portions only of a moving strand of the yarn, it is very important that the wick against which the yarn is pressed to apply the dye, shall be kept wet with dye to a uniform degree. The present invention accomplishes this end by providing a reservoir of dye from which the wick is supplied, and by providing that the dye shall stand at the same level in this reservoir at all times.

The device is shown as supported on a base 10, which base may be placed over the dye vat so that the surplus dye may flow directly back into the vat. To contain the wicks 11 and the dye feeding means a pair of casings 12, 13, are shown rising from the base. A supply of dye to each casing may be provided by vertical supply pipes, as 14,

15, and horizontal supply pipes 16, 17.

Dye may be forced through supply pipes 14, 16, and 15, 17, by extending them through the base 10 to a pump, as 18, one for each pipe, or a single pump for the entire device, as preferred. To regulate the flow of dye screw plugs 19, 20, are shown Specification of Letters Patent.

Patented Jan. 20, 1920.

Serial No. 326,161.

which may be so adjusted as to more or less check the flow from the vertical to the horizontal supply pipes, and may be maintained in adjusted position by a lock nut, as 21 or 22.

A seat for the wick tube 23 in casing 13 is shown in the form of a tapered bushing 24, having an opening at for access of dye to the interior. of the wick-tube a bushing, as 26, may be provided in the lower portion of the casing.

The wick-tube is shown as provided with an enlarged upper portion, as 27, which, as shown, is tapered to fit the bushing 24 and is provided with a semi-circular channel 28, cut into its periphery at the level of the bore of the horizontal supply pipe 17.

Dye flowing into channel 28 is free to pass into the reservoir 29 through openings 30. To conduct the dye from reservoir 29 to wick 11, feed passages 31 are provided (three being shown), which passages may be permitted to discharge to the wick by turning off the exterior of the wick-tube 23 to a depth such as to cut away substantially one-half of the passages from a point, as 32, at about the vertical center of the wick 11. From this point the reduction of size is shown as carried to the lower end of the tube, and is preferably screw-threaded at the lower end, as shown at 33.

To regulate the discharge of dye from the passages 31, a sleeve, as 34, may be slipped over the reduced portion of tube 23, and may be provided with threads to engage those at 33, whereby the sleeve may be vertically adjusted as to proximity to shoulder 32 and may be secured in adjusted position, as by lock nut 35. Preferably the sleeve 34 is made with an external diameter equal to the unreduced diameter of the tube 23, in order that the wick 11 may fit smoothly over the assembled parts. To prevent the accumulation of a bubble in the wick-tube feed space, a plurality of minute holes, as 36, shown as three in number, are provided leading to the interior of the wick-tube.

To provide for a uniform head of dye in reservoir 29, the walls of the bore of the wick-tube are extended upward into reservoir 29, so as to provide an overflow tube, as 37, and notches, as 38, may be cut in the top of the overflow tube 37 in order that the dye may overflow at definite points.

To center the bottom to the wick-tube, the cap 38 thereof is shown perforated at 39. Preferably provision is made for straining the surplus dye upon its return to the, vat, in the form of a screen, as 40, slipped over the end of the wick-tube 23.

According to the usual practice the yarn ll is guided between the wicks 11 as by guides 42, i3, one of which may be given a lateral motion to bring the yarn into con tact with first one and then the other of the wicks 11, and the other may be given a vertical motion in order to vary the points of contact with the wicks. The means for moving the guides 42 and i3 forming no part of the present invention, are not illustrated.

In operation the pumps are so driven and the plugs 19, 20, are so adjusted as to provide a flow of dye to reservoir 29, which shall always be slightly in excess of the amount allowed to flow to the wicks, by the desired adjustment of th sleeve 34. Under these circumstances dye will always be overflowing the top of tube 37, and will consequently always have the same hydraulic head to determine the rate of flow from passages 31. The excess, however, must never be equal to the capacity of the bore of wick-tube 23. This bore being open to the atmosphere above and below, will provide for free escape of the surplus dye, and the wicks will be kept at a uniform degree of saturation.

The base 10 may be screwed to the machine, as by passing screws through openings 4A formed for the purpose. 0

I claim as my invention 1. In a yarn dyer, in combination, a'dye wick, and means operating'under a uniform head to feed dye to said wick.

2. In a yarn dyer, in combination, a wick, an adjustable opening to feed dye to said wick, supply means feeding dye by gravity to said opening, and means to maintain a fixed depth of dye in said supply means.

3. In a yarn dyer, in combination, a wick, a reservoir and passage to feed dye by gravity to said wick, means to maintain a fixed depth of dye in said reservoir, and means for escape of air from said passage.

4;. In a yarn dyer, in combination, means to apply dy to yarn, a reservoir 'for supply of dye to said means, means to feed dye tosaid reservoir in excess of the amount delivered to said applying means, means to maintain a constant depth of dye in said reservoir, and means to allow free escape of the excess dye.

5. Ina yarn dyer, in combination, a wicktube having a reservoir in its upper portion,

neeaess an overflow pipe forming an extension of the bore of said tube within said reservoir, means for supplying dye to said reservoir, said tube having longitudinal passages in its walls opening to the exterior of the tube, and a wick fitting over the wick-tube.

6. In a yarn dyer, in combination, a wicktube having a central bore, a reservoir in its upper portion and an exterior channel in its periphery adjacent the reservoir, a supply tube opening into the channel, the walls of said reservoir being provided with openings connecting the channel with the interior of the reservoir, an overflow pipe forming an extension of the bore of the tube within the reservoir, the walls of th tube being provided with passages for conducting dye from the reservoir to exterior of the tube, and a wick applied to the exterior of the tube.

7. In a yarn dyer, in combination, a wick, a dye reservoir, an overflow pipe standing within said reservoir having notches in its. edge for escape of dye, means to supply dye to said reservoir in excess of that applied to th material, and means to convey dye from the reservoir to the Wick.

8. In a yarn dyer, in combination, a wick tube having a reservoir in its upper portion and passages in its walls longitudinally thereof, said tube reduced in size at its lower portion to provide a shoulder, said passages opening at the shoulder and becoming longitudinal channels in the reduced portion, a sleeve fitting over and longitudinally adjustable on said reduced portion whereby more or less of said channels are covered to regulate delivery of dye from said passages, and a wick applied to the exterior of the tube and sleeve.

9. In a yarn dyer, in combination, a wick tube having a channel in its periphery for delivery of dye, means for adjusting the width of said channel, means for feeding dye to said channel, and a wick applied to said tube and covering said channel.

10. In a yarn dyer, in combination, a wick tube having an annular channel in its periphery for delivery of dye, means for adj usting the width of said channel, means for feeding dye to said channel, and a wick applied to said tube and covering said channel. 11. In a yarn dyer, in combination, a wick tube having an annular dye-delivering channel open to its exterior, means for adjusting the width of said channel, means operating under a constant head for feeding dye by gravity to said channel, and a wick receiving dye from said channel.

ALBERT KRASA. 

